Digital Contracts in Blockchain Environments

ABSTRACT

Digital or “smart” contracts execute in a blockchain environment. Any entity (whether public or private) may specify a digital contract via a contract identifier in a blockchain. Because there may be many digital contracts offered as services, the contract identifier uniquely identifies a particular digital contract offered by a vendor or supplier. The blockchain is thus not burdened with the programming code that is required to execute the digital contract. The blockchain need only include or specify the contract identifier (and perhaps one or more contractual parameters), thus greatly simplifying the blockchain and reducing its size (in bytes) and processing requirements.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims domestic benefit of U.S. Provisional Application No. 62/714,909 filed Aug. 6, 2018 and incorporated herein by reference in its entirety. This application relates to U.S. application Ser. No. 15/983,572 filed May 18, 2018 and incorporated herein by reference in its entirety. This application also relates to U.S. application Ser. No. 15/983,595 filed May 18, 2018 and incorporated herein by reference in its entirety. This application also relates to U.S. application Ser. No. 15/983,612 filed May 18, 2018 and incorporated herein by reference in its entirety. This application also relates to U.S. application Ser. No. 15/983,632 filed May 18, 2018 and incorporated herein by reference in its entirety. This application also relates to U.S. application Ser. No. 15/983,655 filed May 18, 2018 and incorporated herein by reference in its entirety. This application also relates to U.S. application Ser. No. ______, filed ______ and entitled “Digital Contracts in Blockchain Environments” (Attorney Docket Factom #15), and incorporated herein by reference in its entirety.

BACKGROUND

Blockchain usage is growing. As cryptographic blockchain gains acceptance, improved techniques are needed for executing “smart” digital contracts.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The features, aspects, and advantages of the exemplary embodiments are understood when the following Detailed Description is read with reference to the accompanying drawings, wherein:

FIGS. 1-13 are simplified illustrations of a digital contract in a blockchain environment, according to exemplary embodiments;

FIGS. 14-16 are more detailed illustrations of an operating environment, according to exemplary embodiments;

FIGS. 17-21 illustrate a blockchain data layer, according to exemplary embodiments;

FIGS. 22-24 further illustrate the digital contract, according to exemplary embodiments;

FIGS. 25-27 illustrate an access mechanism, according to exemplary embodiments;

FIG. 28 illustrates a public entity, according to exemplary embodiments;

FIGS. 29-32 illustrate contractual execution, according to exemplary embodiments;

FIG. 33 is a flowchart illustrating a method or algorithm for executing of digital contracts, according to exemplary embodiments; and

FIGS. 34-35 depict still more operating environments for additional aspects of the exemplary embodiments.

DETAILED DESCRIPTION

The exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings. The exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the exemplary embodiments to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).

Thus, for example, it will be appreciated by those of ordinary skill in the art that the diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating the exemplary embodiments. The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing associated software. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named manufacturer.

As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms “includes,” “comprises,” “including,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Furthermore, “connected” or “coupled” as used herein may include wirelessly connected or coupled. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

It will also be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first device could be termed a second device, and, similarly, a second device could be termed a first device without departing from the teachings of the disclosure.

FIGS. 1-13 are simplified illustrations of a digital contract 20 in a blockchain environment 22, according to exemplary embodiments. The digital contract 20 is sometimes referred to as a self-executing or “smart” contract between parties to a transaction. The digital contract 20 may be executable code that runs on a blockchain 24. The blockchain 24 has one or more blocks 26 of data. A conventional smart contract facilitates, executes, and/or enforces the terms of an agreement. Whatever the terms, the digital contract 20 may automatically execute the terms once predetermined logical rules, conditions, or code is satisfied. The digital contract 20 may thus be expressed in a programming language. Smart contracts are generally known, so this disclosure will not dwell on the known aspects.

Here, though, the blockchain 24 need only reference the digital contract 20. That is, the actual programming language defining the digital contract 20 need not be included within or attached to the blockchain 24. Instead, the blockchain 24 need only include or specify a contract identifier 28 and perhaps one or more contractual parameters 30. The contract identifier 28 is any digital identifying information that uniquely identifies or references the digital contract 20. Similarly, the contractual parameters 30 may digitally identify the parties to the digital contract 20, their respective performance obligations and terms, and even consideration. So, instead of the blockchain 24 carrying or conveying the actual code representing the digital contract 20, exemplary embodiments need only specify the contract identifier 28 and perhaps the contractual parameters 30. The blocks 26 of data within the blockchain 24 are thus not burdened with the programming code that is required to execute the digital contract 20. The blockchain 24 need only include or specify the contract identifier 28 and/or the contractual parameters 30 (or their respective hash values), thus greatly simplifying the blockchain 24 and reducing its size (in bytes) and processing requirements.

FIG. 2 further illustrates the blockchain 24. Here any entity 32 may generate the blockchain 24. While exemplary embodiments may be applied to any entity 32, most readers are thought familiar with financial services. That is, suppose the entity 32 is a bank, lender, or other financial institution 34 (such as PIMCO®, CITI®, or BANK OF AMERICA®). As the reader likely understands, the financial institution 34 creates a massive amount of banking records, transaction records, mortgage instruments, and other private data 36. The financial institution 34 thus has a financial server 38 executing a software application 40 that encrypts its private data 36. While the software application 40 may use any encryption scheme, FIG. 2 illustrates the private blockchain 24. That is, the software application 40 causes the financial server 38 to cryptographically hash the private data 36 and to integrate the resulting hash value(s) into the block 26 of data within the private blockchain 24. Moreover, because the private data 36 may represent contractual obligations between parties, the software application 40 may further cause the blockchain 24 to include the contract identifier 28 and the contractual parameters 30. The contract identifier 28 and the contractual parameters 30 may be encoded as data or information contained within the block 26 of data, or the contract identifier 28 and the contractual parameters 30 may be data or information that is separate from the block 26 of data (such as informational content in metadata or in a packet header/body). Regardless, the blockchain 24 need not include the programming code representing the digital contract 20. The blockchain 24 need only specify the contract identifier 28 and/or the contractual parameters 30.

FIG. 3 illustrates a contract server 42. The contract server 42 may be responsible for executing the digital contract 20 referenced by the contract identifier 28 and/or the contractual parameters 30. For example, after the financial server 38 (executing the software application 40) generates the block 26 of data within the blockchain 24, the financial server 38 may send the blockchain 24 to the network address (e.g., Internet protocol address) associated with the contract server 42. When the contract server 42 receives the blockchain 24, the contract server 42 inspects the blockchain 24 to identify the contract identifier 28 and/or the contractual parameters 30. Once the contract identifier 28 is determined, the contract server 42 may then consult an electronic database 44 of contracts. The database 44 of contracts has entries that map or relate the contract identifier 28 to its corresponding digital contract 20. The database 44 of contracts, in other words, may identify a computer file 46 that contains the programming language representing the digital contract 20 identified by the contract identifier 28. So, once the digital contract 20 is determined, the contract server 42 may retrieve and locally execute the computer file 46, perhaps based on parameters defined or described by the contractual parameters 30 (such as party names, parameters associated with their respective performance obligations and terms, and consideration). Again, then, the blockchain 24 need only reference the digital contract 20 (using the contract identifier 28 and/or the contractual parameters 30). The actual execution of the digital contract 20 may be offloaded or outsourced to the contract server 42.

FIG. 4 also illustrates the contract server 42. Here, though, the contract server 42 may only manage the execution of the digital contract 20 referenced by the contract identifier 28 and/or the contractual parameters 30. That is, the contract server 42 may outsource the execution of the digital contract 20 to a vendor, a supplier, or a subcontractor process. Again, when the contract server 42 receives the blockchain 24, the contract server 42 inspects the blockchain 24 to identify the contract identifier 28 and/or the contractual parameters 30. The contract server 42 may then consult the database 44 of contracts. Here, though, the database 44 of contracts has entries that map or relate the contract identifier 28 to a network resource 50 that processes and/or executes the digital contract 20 as a service (perhaps as a software-as-a-service or “SAAS”). The network resource 50 may thus be a remote server, a virtual machine, a web page or web server, a client device/machine, or other resource that executes the digital contract 20. Once the network resource 50 is determined, the contract server 42 may retrieve and send the contractual parameters 30 to the network resource 50 for execution. The network resource 50 (perhaps operated on behalf of a third party) applies the parameters defined or described by the contractual parameters 30 to the programming code representing the digital contract 20.

Exemplary embodiments thus only need to identify the digital contract 20. The contract identifier 28 and the contractual parameters 30 need only be informational content in the private blockchain 24. The contract identifier 28 is any digital identifying information that uniquely identifies or references the digital contract 20. The contract identifier 28 may be an alphanumeric combination that uniquely identifies a vendor and/or version of the digital contract 20 and/or a processor or executioner of the digital contract 20. The contract identifier 28 may be expressed as a unique hash value that is included within, or specified by, the private blockchain 24. Similarly, the contractual parameters 30 may identify the parties to the digital contract 20, their respective performance obligations and terms, and consideration.

FIG. 5 illustrates consideration. When the digital contract 20 is executed, the parties to the digital contract 20 may be compensated (perhaps according to the contractual parameters 30 describing consideration). Moreover, the contract server 42 and/or the network resource 50 may also be compensated. While there are many compensation schemes, this disclosure mostly explains crypto-compensation. That is, when the digital contract 20 successfully executes, perhaps the parties exchange, trade, or transfer cryptographic currencies. Suppose, for example, that the financial institution 34 creates its own cryptographic coinage 60 in the blockchain environment 22. The entity 32, in other words, may establish entity-specific electronic tokens 62 to access and/or to use the blockchain environment 22. Because the private blockchain 24 represents hashes of the financial institution's private data 36, the private blockchain 24 may be considered a private resource or property of the financial institution 34. That is, the private blockchain 24 is controlled by, or affiliated with, the financial institution 34, so the financial institution 34 may control who adds and/or writes to the private blockchain 24 and who reads, accesses, or receives the private blockchain 24.

The entity-specific tokens 62 may thus be control mechanisms. While the entity-specific tokens 62 may have any functional scheme, FIG. 5 illustrates a private credit token 64 and a private tradeable token 66. The entity's credit token 64, for example, may be acquired and then spent or burned when accessing the financial institution's private blockchain 24. The entity's credit token 64, in other words, represents any credit-based entry system associated with the financial institution's private blockchain 24. The tradeable token 66, on the other hand, may be generated for transfer among others. The entity 32 generates the tradeable token 66 to be traded and/or spent. The tradeable token 66, in other words, may be considered as the entity's specific, private currency to be used as the entity 32 governs.

Exemplary embodiments may thus trade or exchange crypto-compensation. That is, when the digital contract 20 successfully executes, perhaps the parties exchange, trade, or transfer the credit token 64 and/or the tradeable token 66. When any party, or all the parties, perform their assigned role in the transaction, value is given via the credit token 64 and/or the tradeable token 66. Similarly, the contract server 42 and/or the network resource 50 may also be compensated via the credit token 64 and/or the tradeable token 66, perhaps as a “mining” fee for executing the digital contract 20.

The digital contract 20 is thus a computer program or code that verifies and/or enforces negotiation and/or performance of a contract between parties. One fundamental purpose of so-called smart contracts is to integrate the practice of contract law and related business practices with electronic commerce protocols between parties or devices via the Internet. Smart contracts may leverage a user interface that provides one or more parties or administrators access, which may be restricted at varying levels for different people, to the terms and logic of the contract. Smart contracts typically include logic that emulates contractual clauses that are partially or fully self-executing and/or self-enforcing. Examples of smart contracts are digital rights management (DRM) used for protecting copyrighted works, financial cryptography schemes for financial contracts, admission control schemes, token bucket algorithms, other quality of service mechanisms for assistance in facilitating network service level agreements, person-to-person network mechanisms for ensuring fair contributions of users, and others. Smart contract infrastructure can be implemented by replicated asset registries and contract execution using cryptographic hash chains and Byzantine fault tolerant replication. For example, each node in a peer-to-peer network or blockchain distributed network may act as a title registry and escrow, thereby executing changes of ownership and implementing sets of predetermined rules that govern transactions on the network. Each node may also check the work of other nodes and in some cases, as noted above, function as miners or validators.

FIG. 6 further illustrates the contract server 42. When the contract server 42 receives the blockchain 24, here the contract server 42 may generate data records 70 in a blockchain data layer 72, as later paragraphs will explain. The contract server 42 may thus be termed or called a data layer server 74. Moreover, the blockchain data layer 72 may also add another layer of cryptographic hashing to generate a public blockchain 76. The blockchain data layer 72 acts as a validation service 78 that validates the digital contract 20 was executed. Moreover, the blockchain data layer 72 may generate a cryptographic proof 80. The public blockchain 76 thus publishes the cryptographic proof 80 as a public ledger 82 that establishes chains of blocks of immutable evidence.

FIGS. 7-8 illustrate examples of the entity-specific tokens 62. Suppose that a third-party 90 wishes to receive, read, write to, or otherwise access the financial institution's private blockchain 24 and/or the digital contract 20. As FIG. 7 illustrates, exemplary embodiments may require that the third-party 90 spend or burn one or more of the credit tokens 64. The credit token 64 may thus control access to the financial institution's private blockchain 24 and/or the digital contract 20. The inventor envisions that vendors, service providers, individual users, and other third-parties 60 may wish to access the hash values of the private data 36 contained within the financial institution's private blockchain 24. Moreover, the third party may want to access, inspect, execute, or verify the digital contract 20. The financial institution 34 may thus require that the third-party 90 redeem the entity's credit token(s) 50 before granting read, write, or access permission to the digital contract 20. The financial institution 34 may additionally or alternatively require redemption of the entity's credit token(s) 64 for using protocols, rules, and application programming interfaces (“APIs”) associated with the private blockchain 24 and/or the digital contract 20. The financial institution 34 may thus establish or issue its own credit tokens 64 and even govern their usage restrictions 92 and value 94, as later paragraphs will explain.

FIG. 8 illustrates the tradeable token 66. The financial institution 34 may establish the tradeable token 66 and also govern its usage restrictions 92 and value 94. The tradeable token 66, in other words, is a cryptocurrency or “coin.” Again, while exemplary embodiments may utilize any functional scheme, the tradeable token 66 may be earned. That is, anyone (such as the third party 90) may earn the tradeable token 66 according to the usage restrictions 92. For example, suppose the data layer server 74 earns the entity's tradeable token(s) 52 in exchange for processing and/or managing an execution of the digital contract 20. The data layer server 74 may additionally or alternatively earn the entity's tradeable token(s) 52 in exchange for the validation service 78. That is, a provider of the validation service 78 is paid, or earns, the entity's tradeable token(s) 52 for processing or executing the digital contract 20 and/or for cryptographically hashing the proof 80 of the digital contract 20. The provider of the validation service 78 may also be paid in the entity's tradeable token(s) 52 for publishing the proof 80. The tradeable token 66 may thus be transferred as currency according to the usage restrictions 92 and its value 94.

FIG. 9 illustrates transaction records 100. Whenever the entity-specific tokens 62 are created, owned, or transferred, the transaction record 100 may be generated. The transaction record 100 may then be documented in the blockchain environment 22. For example, the entity-specific tokens 62 may be addressable. That is, the credit token 64 and the tradeable token 66 may be uniquely associated with a common, single cryptographic address 102. The cryptographic address 102 may represent an owner or holder (e.g., the entity 32 or the third-party 90). When the entity-specific tokens 62 are created, generated, or assigned, the entity-specific tokens 62 may be assigned or associated with the cryptographic address 102. The cryptographic address 102 may then be received by, and propagated within, the blockchain data layer 72 to identify the corresponding data records 70. The blockchain data layer 72 may even hash the cryptographic address 102 as the cryptographic proof 80 of the transaction records 100. Exemplary embodiments thus publicly document the transaction records 100 involving the entity-specific tokens 62, based on the single cryptographic address 102. In simple words, the blockchain data layer 72 publishes ownership and transfer proofs 80 of the credit token 64 and the tradeable token 66 based on the transaction records 100 associated with the single cryptographic address 102.

The transaction records 100 may also document the digital contract 20. Whenever the digital contract 20 is specified, generated, processed, or even executed, the transaction record 100 may be generated. The transaction record 100 may then be documented in the blockchain environment 22. For example, the entity-specific tokens 62 may be earned as payment according to the executable terms of the digital contract 20. The entity-specific tokens 62 may additionally or alternatively be earned or awarded for processing or executing a portion of, or entirely, the digital contract 20. The entity-specific tokens 62 may thus be uniquely associated with a party to the digital contract 20 and/or with a service provider/processor of the digital contract 20. The transaction record 100 may document the parties to the digital contract 20, a transactional description describing a transaction governed by the digital contract 20, and any financial or performance terms. The transaction record 100 may thus document an offer, an acceptance, a consideration, and terms. For simplicity, then, the single cryptographic address 102 may represent a party to the digital contract 20 and/or with a service provider/processor of the digital contract 20. Regardless, when the entity-specific tokens 62 are created, generated, or assigned, the entity-specific tokens 62 may be received by, and propagated within, the blockchain data layer 72 to identify the corresponding data records 70. The blockchain data layer 72 may thus publish the proofs 80 of the digital contract 20 and any entity-specific tokens 62 paid or exchanged, according to the transaction records 100.

FIG. 10 illustrates a filling station 110 in the blockchain environment 22. Because the tokens 62 may be consumed by users (such as during or after any processing or execution of the digital contract 20), the filling station 110 allows the third party 90 to replenish or fill an account 112. Recall that the third-party entity 32 may be required to spend the tokens 62 to access the financial institution's private blockchain 24 and/or the digital contract 20. Moreover, the tokens 62 may also be earned or transferred according to the terms of the digital contract 20. The account 112 may thus be established, and the account 112 maintains a monetary or numerical balance 114 of the tokens 62. As the tokens 62 are spent, traded, or redeemed, the account 112 may need filling to continue using or accessing the blockchain 24 and/or the digital contract 20.

The filling station 110 may access both the transaction records 100 and the blockchain data layer 72. Because the blockchain data layer 72 may document the data records 70 using the single cryptographic address 102, the single cryptographic address 102 may serve as a common reference or query parameter with the entity's transaction records 100. The filling station 110, in other words, may use the single cryptographic address 102 to identify the transaction records 100 that correspond to the blockchain data layer 72. The filling station 110 may thus present a transaction summary of the account 112 and the balance 114. Because blockchain data layer 72 may track and/or prove the transaction records 100, exemplary embodiments may search the blockchain data layer 72 for the single cryptographic address 102. That is, the filling station 110 may query the blockchain data layer 72 for the single cryptographic address 102, and the blockchain data layer 72 may identify the transaction records 100 that match the single cryptographic address 102. Similarly, exemplary embodiments may query the blockchain data layer 72 for the contract identifier 28 and/or the contractual parameters 30, and the blockchain data layer 72 may identify the transaction records 100 that match the contract identifier 28 and/or the contractual parameters 30. The filling station 110 may then process the transaction records 100 to provide the transaction summary of the account 112, the balance 114, and any other transactional data. The filling station 110 may also allow the user to replenish an amount or value of the tokens 62, thus allowing the user to continue exchanging the tokens 62 for access to the private blockchain 24, the blockchain data layer 72, and/or the digital contract 20. The filling station 110 may thus be an access mechanism to the blockchain data layer 72.

FIG. 11 further illustrates the filling station 110. Here the blockchain data layer 72 may have its own cryptocoinage 120. That is, a provider of the blockchain data layer 72 may establish its cryptocoinage 120 for accessing and/or using the validation service 78. The cryptocoinage 120 may thus include a credit token and a tradeable token (not shown for simplicity). The credit token may be required to enter or access the blockchain data layer 72 to receive the validation service 78, and the tradeable token may be earned for participating in the validation service 78. Regardless, the filling station 110 may use the single cryptographic address 102. The third party 90 may use the single cryptographic address 102 to access the entity's cryptocoinage 60 and the blockchain data layer's cryptocoinage 120. Exemplary embodiments may thus identify and track the transaction records 100 and the blockchain data layer's cryptocoinage 120 using the same, single cryptographic address 102.

Exemplary embodiments thus present an elegant solution. Any entity 32 may create its own private blockchain 24 and offer or present the digital contract 20 for self-execution. The entity 32 may then establish or create the tokens 62 for using, accessing, or processing the entity's private blockchain 24 and/or the digital contract 20. The tokens 62 may have the value 94, thus fostering a market for entity-specific tradeable assets in the blockchain environment 22. The tradable value 94 of the tokens 62 may thus drive demand to use the digital contracts 20. Exemplary embodiments may thus provide a two-token system that isolates any use of the entity's private blockchain 24 from the entity's tradeable token 66. Moreover, the credit token 64 may be associated with the third party 90 (perhaps via the single cryptographic address 102), thus allowing the third party 90 to retrieve the account balance 114 from the filling station 110 and sign entries or other transactions. Moreover, the third party 90 may also use the single cryptographic address 102 to access the blockchain data layer 72 via the filling station 110. The filling station 110 is a single resource or destination (such as a secure website) for managing a user's cryptographic coinage 60 and defining payments according to the digital contract 20.

FIG. 12 expands the entity concept. Here multiple, different entities 32 a-d provide their respective software applications 40 a-d that encrypt their respective private data 36 a-d as their individual, private blockchains 24 a-d. While exemplary embodiments may be applied to any number of industries or services, FIG. 12 illustrates a simple example of four (4) different entities 32 a-d. First entity 32 a, for example, again represents the bank, lender, or other financial institution 34 that encrypts its private data 36 a as its private blockchain 24 a. Second entity 32 b represents any retailer 122 (such as HOME DEPOT®, KOHL'S®, or WALMART®) that encrypts its private data 36 b as its private blockchain 24 b. Third entity 32 c represents a web site 124 offering a service 126 (such as AMAZON®, NETFLIX®, or GOOGLE®) that encrypts its private data 36 c as the private blockchain 24 c. Fourth entity 32 d represents an automotive or other manufacturer or supplier 128 (such as FORD®, TOYOTA®, or DELPHI®) that encrypts its private data 36 d as the private blockchain 24 d. The entities 32 a-d thus use their respective software applications 40 a-d to provide a first layer 130 of cryptographic hashing. The entities 32 a-d may also use their respective software applications 40 a-d to issue their own private and entity-specific cryptocoinage 60 a-d. Each entity 32 a-d may then send their respective private blockchains 24 a-d to the blockchain data layer 72, and the blockchain data layer 72 may add a second layer 132 of cryptographic hashing. The blockchain data layer 72 thus generates the public blockchain 76 as a public resource or utility for record keeping. Any entity 32 that subscribes to the blockchain data layer 72 (such as by acquiring and/or spending the cryptocoinage 120) may thus access, read, and/or store the proofs 80 of its private data 36 to the public blockchain 76. The blockchain data layer 72, in other words, acts as the public ledger 82 that establishes chain of blocks of immutable evidence.

As FIG. 12 also illustrates, each entity 32 a-d may establish its own private cryptocoinage 60 a-d. Each entity's private software application 40 a-d may create and/or issue its cryptocoinage 60 a-d (such as respective entity-specific tokens 62 above explained). Each entity 32 a-d may also establish its own usage restrictions and value (illustrated as reference numerals 92 and 94 in FIGS. 7-8) according to rules governing ownership, trade, and other policies. Each entity 32 a-d may generate and sends its respective transaction records 100 a-d which reference each entity's single cryptographic address 102 a-d to the blockchain data layer 72 for documentation.

As FIG. 12 further illustrates, each entity 32 a-d may also specify their respective digital contract 20 a-d. When any of the private blockchains 24 a-d is received, the blockchain data layer 72 may coordinate execution of any digital contract 20 a-d. The blockchain data layer 72, for example, may inspect any private blockchain 24 a-d and identify any information associated with the digital contract 20 a-d. The blockchain data layer 72 may then execute the digital contract 20 a-d, and/or the blockchain data layer 72 may identify a service provider that executes the digital contract 20 a-d. The blockchain data layer 72, in other words, may manage the execution of the digital contracts 20 a-d according to a subcontractor relationship. A provider of the blockchain data layer 72 may then be compensated via any entity's cryptocoinage 60 a-d and/or the blockchain data layer's cryptocoinage 120.

As FIG. 13 illustrates, the filling station 110 may be agnostic. Any user (such as the entity 32 a-d or the third party 90) may authenticate to the filling station 110. Once authenticated, the user need only enter or provide the correct single cryptographic address 102 a-d to access the entity's private cryptocoinage 60 a-d, the blockchain data layer's cryptocoinage 120, and/or the entity's digital contract 20 a-d. The single cryptographic address 102 a-d, in other words, allows the user to access her account 112 and balance 114 for the entity's private cryptocoinage 60 a-d, the blockchain data layer's cryptocoinage 120, and/or the entity's digital contract 20 a-d. The user may thus easily conduct transactions between the entity's private cryptocoinage 60 a-d and the blockchain data layer's cryptocoinage 120. The entity 32 a-d, for example, may fuel or replenish its supply of the blockchain data layer's cryptocoinage 120, perhaps by redeeming or exchanging the entity's private cryptocoinage 60 a-d (perhaps according to an exchange rate or other value). Similarly, the provider of the blockchain data layer 72 may fuel or replenish its supply of the entity's private cryptocoinage 60 a-d by purchasing or exchanging the blockchain data layer's cryptocoinage 120. The provider of the blockchain data layer 72 may also earn the entity's private cryptocoinage 60 a-d by processing any portion of, or by executing, the entity's digital contract 20 a-d. Moreover, the respective private blockchains 24 a-d and the blockchain data layer 72 would contain the data records 70 confirming the processing and/or execution of the digital contract 20 a-d, so the transaction records 100 a-d thus propagate into the blockchain data layer 72 for public disclosure via the public blockchain 76. Any user that successfully authenticates to the filling station 110 may access a full accounting of his or her digital cryptocoinages 60 a-d and/or 120 and any digital contracts 20, perhaps according to the respective single cryptographic address 102 a-d. The user may thus buy, sell, trade, and/or redeem any entity-specific cryptocoinages 20 a-d and/or 90, all by accessing the filling station 110. The user may buy or sell any entity's coins or replenish credits, all by accessing the filling station 110. The user may also track performance or obligations defined by the digital contracts 20 a-d and any payments or consideration received or paid.

Exemplary embodiments thus present another elegant solution. The filling station 110 is another service offered by the blockchain data layer 72. Because all the transaction records 100 in the blockchain data layer 72 are identifiable (perhaps via the single cryptographic address 102), the filling station 110 can present the summary of the user's credit tokens and tradeable tokens. The filling station 110 may thus provide a single or universal electronic wallet for all of a user's digital coinage and credits, regardless of the issuing entity 32 a-d. The user may thus only perform a single authentication to the blockchain data layer 72 and access all her cryptofunds.

FIGS. 14-16 are more detailed illustrations of an operating environment, according to exemplary embodiments. FIG. 14 illustrates an entity server 140 communicating with the data layer server 74 via a communications network 142. The entity server 140 operates on behalf of the entity 32 and generates the entity's private blockchain 24 (such as the financial server 38 explained with reference to FIGS. 2-11). The entity server 140, in other words, has a processor 144 (e.g., “μP”), application specific integrated circuit (ASIC), or other component that executes the entity's software application 40 stored in a local memory device 146. The entity server 140 has a network interface to the communications network 142, thus allowing two-way, bidirectional communication with the data layer server 74. The entity's software application 40 includes instructions, code, and/or programs that cause the entity server 140 to perform operations, such as calling, invoking, and/or applying an electronic representation of a hashing algorithm 148 to the entity's private data 36. The hashing algorithm 148 thus generates one or more hash values 150, which are incorporated into the entity's private blockchain 24. The entity's software application 40 then instructs the entity server 140 to send the private blockchain 24 via the communications network 142 to a network address (e.g., Internet protocol address) associated with the data layer server 74.

The digital contract 20 may also be identified. The entity's software application 40 may also instruct the entity server 140 to specify the digital contract 20 as informational content in the private blockchain 24. For example, the digital contract 20 may be identified by the contract identifier 28 and contractual parameters 30. The contract identifier 28 is any digital identifying information that uniquely identifies or references the digital contract 20. The contract identifier 28 may be an alphanumeric combination that uniquely identifies a vendor and/or version of the digital contract 20 and/or a processor or executioner of the digital contract 20. The contract identifier 28 may also be one of the unique hash values 150 (perhaps generated by the hashing algorithm 148) that is included within, or specified by, the private blockchain 24. Similarly, the contractual parameters 30 may identify the parties to the digital contract 20, their respective performance obligations and terms, and consideration.

FIG. 15 illustrates the blockchain data layer 72. The data layer server 74 has a processor 152 (e.g., “μP”), application specific integrated circuit (ASIC), or other component that executes a data layer application 154 stored in a local memory device 156. The data layer server 74 has a network interface to the communications network 142. The data layer application 154 includes instructions, code, and/or programs that cause the data layer server 74 to perform operations, such as receiving the entity's private blockchain 24, the digital contract 20, the contract identifier 28, and/or the contractual parameters 30. The data layer application 154 then causes the data layer server 74 to generate the blockchain data layer 72. The data layer application 154 may optionally call, invoke, and/or apply the hashing algorithm 148 to the data records 70 contained within the blockchain data layer 72. The data layer application 154 may also generate the public blockchain 76. The data layer application 154 may thus generate the public ledger 82 that publishes, records, or documents the digital contract 20, the contract identifier 28, and/or the contractual parameters 30. Indeed, if the data layer application 154 processes and/or manages the digital contract 20, the data records 70 may document any processing or execution, and the data layer application 154 may optionally apply the hashing algorithm 148 to the data records 70 to generate the cryptographic proof 80 of the digital contract 20.

FIG. 16 illustrates additional publication mechanisms. Once the blockchain data layer 72 is generated, the blockchain data layer 72 may be published in a decentralized manner to any destination. The data layer server 74, for example, may generate and distribute the public blockchain 76 (via the communications network 142 illustrated in FIGS. 14-15) to one or more federated servers 160. While there may be many federated servers 160, for simplicity FIG. 16 only illustrates two (2) federated servers 160 a and 160 b. The federated servers 160 a and 160 b provide a service and, in return, they are compensated according to a compensation or services agreement or scheme.

Exemplary embodiments include still more publication mechanisms. For example, the cryptographic proof 80 and/or the public blockchain 76 may be sent (via the communications network 142 illustrated in FIGS. 14-15) to a server 162. The server 162 may then add another, third layer of cryptographic hashing (perhaps using the hashing algorithm 148) and generate another or second public blockchain 164. While the server 162 and/or the public blockchain 164 may be operated by, or generated for, any entity, exemplary embodiments may integrate another cryptographic coin mechanism. That is, the server 162 and/or the public blockchain 164 may be associated with BITCOIN®, ETHEREUM®, RIPPLE®, or other cryptographic coin mechanism. The cryptographic proof 80 and/or the public blockchain 76 may be publicly distributed and/or documented as evidentiary validation. The cryptographic proof 80 and/or the public blockchain 76 may thus be historically and publicly anchored for public inspection and review.

Exemplary embodiments may be applied regardless of networking environment. Exemplary embodiments may be easily adapted to stationary or mobile devices having cellular, wireless fidelity (WI-FI®), near field, and/or BLUETOOTH® capability. Exemplary embodiments may be applied to mobile devices utilizing any portion of the electromagnetic spectrum and any signaling standard (such as the IEEE 802 family of standards, GSM/CDMA/TDMA or any cellular standard, and/or the ISM band). Exemplary embodiments, however, may be applied to any processor-controlled device operating in the radio-frequency domain and/or the Internet Protocol (IP) domain. Exemplary embodiments may be applied to any processor-controlled device utilizing a distributed computing network, such as the Internet (sometimes alternatively known as the “World Wide Web”), an intranet, a local-area network (LAN), and/or a wide-area network (WAN). Exemplary embodiments may be applied to any processor-controlled device utilizing power line technologies, in which signals are communicated via electrical wiring. Indeed, exemplary embodiments may be applied regardless of physical componentry, physical configuration, or communications standard(s).

Exemplary embodiments may utilize any processing component, configuration, or system. Any processor could be multiple processors, which could include distributed processors or parallel processors in a single machine or multiple machines. The processor can be used in supporting a virtual processing environment. The processor could include a state machine, application specific integrated circuit (ASIC), programmable gate array (PGA) including a Field PGA, or state machine. When any of the processors execute instructions to perform “operations,” this could include the processor performing the operations directly and/or facilitating, directing, or cooperating with another device or component to perform the operations.

Exemplary embodiments may packetize. When the entity server 140 and the data layer server 74 communicate via the communications network 142, the entity server 140 and the data layer server 74 may collect, send, and retrieve information. The information may be formatted or generated as packets of data according to a packet protocol (such as the Internet Protocol). The packets of data contain bits or bytes of data describing the contents, or payload, of a message. A header of each packet of data may contain routing information identifying an origination address and/or a destination address.

FIGS. 17-21 further illustrate the blockchain data layer 72, according to exemplary embodiments. The blockchain data layer 72 chains hashed directory blocks 170 of data into the public blockchain 76. For example, the blockchain data layer 72 accepts input data (such as the entity's private blockchain 24 illustrated in FIGS. 1-13) within a window of time. While the window of time may be configurable from fractions of seconds to hours, exemplary embodiments use ten (10) minute intervals. FIG. 17 illustrates a simple example of only three (3) directory blocks 170 a-c of data, but in practice there may be millions or billions of different blocks. Each directory block 184 of data is linked to the preceding blocks in front and the following or trailing blocks behind. The links are created by hashing all the data within a single directory block 184 and then publishing that hash value within the next directory block.

As FIG. 18 illustrates, published data may be organized within chains 172. Each chain 172 is created with an entry that associates a corresponding chain identifier 174. Each entity 32 a-f, in other words, may have its corresponding chain identifier 174 a-d. The blockchain data layer 72 may thus track any data associated with the entity 32 a-f with its corresponding chain identifier 174 a-d. New and old data in time may be associated with, linked to, identified by, and/or retrieved using the chain identifier 174 a-d. Each chain identifier 174 a-d thus functionally resembles a directory 176 a-d (e.g., files and folders) for organized data entries according to the entity 32 a-f.

FIG. 19 illustrates the data records 70 in the blockchain data layer 72. As data is received as an input (such as the private blockchain 24 and/or the digital contract 20 illustrated in FIGS. 1-13), data is recorded within the blockchain data layer 72 as an entry 180. While the data may have any size, small chunks (such as 10 KB) may be pieced together to create larger file sizes. One or more of the entries 180 may be arranged into entry blocks 182 representing each chain 172 according to the corresponding chain identifier 174. New entries for each chain 172 are added to their respective entry block 182 (again perhaps according to the corresponding chain identifier 174). After the entries 180 have been made within the proper entry blocks 182, all the entry blocks 182 are then placed within in the directory block 184 generated within or occurring within a window 186 of time. While the window 186 of time may be chosen within any range from seconds to hours, exemplary embodiments may use ten (10) minute intervals. That is, all the entry blocks 182 generated every ten minutes are placed within in the directory block 184.

FIG. 20 illustrates cryptographic hashing. The data layer server 74 executes the data layer application 154 to generate the data records 70 in the blockchain data layer 72. The data layer application 154 may then instruct the data layer server 74 to execute the hashing algorithm 148 on the data records 70 (such as the directory block 184 illustrated in FIGS. 17-19). The hashing algorithm 148 thus generates one or more hash values 150 as a result, and the hash values 150 represent the hashed data records 70. As one example, the blockchain data layer 72 may apply a Merkle tree analysis to generate a Merkle root (representing a Merkle proof 80) representing each directory block 184. The blockchain data layer 72 may then publish the Merkle proof 80 (as this disclosure explains).

FIG. 21 illustrates hierarchical hashing. The entity's private software application 40 provides the first layer 130 of cryptographic hashing and generates the private blockchain 24. The entity 32 then sends its private blockchain 24 (perhaps referencing or specifying the digital contract 20) to the data layer server 74. The data layer server 74, executing the data layer application 154, generates the blockchain data layer 72. The data layer application 154 may optionally provide the second or intermediate layer 132 of cryptographic hashing to generate the cryptographic proof 80. The data layer application 154 may also publish any of the data records 70 as the public blockchain 76, and the cryptographic proof 80 may or may not also be published via the public blockchain 76. The public blockchain 76 and/or the cryptographic proof 80 may be optionally sent to the server 162 as an input to yet another public blockchain 164 (again, such as BITCOIN®, ETHEREUM®, or RIPPLE®) for a third layer 188 of cryptographic hashing and public publication. The first layer 130 and the second layer 132 thus ride or sit atop a conventional public blockchain 164 (again, such as BITCOIN®, ETHEREUM®, or RIPPLE®) and provide additional public and/or private cryptographic proofs 80.

Exemplary embodiments may use any hashing function. Many readers may be familiar with the SHA-256 hashing algorithm. The SHA-256 hashing algorithm acts on any electronic data or information to generate a 256-bit hash value as a cryptographic key. The key is thus a unique digital signature. There are many hashing algorithms, though, and exemplary embodiments may be adapted to any hashing algorithm.

FIGS. 22-24 are more detailed illustrations of the digital contract 20, according to exemplary embodiments. The private entity 32 sends its private blockchain 24 to the network address associated with the data layer server 74 that generates the blockchain data layer 72. The private blockchain 24 may contain information representing the transaction records 100 associated with the entity's private cryptocoinage 60 (perhaps as one or more privately hashed blocks of data). The private blockchain 24 may also specify, or incorporate, information or data representing the single cryptographic address 102 and/or the digital contract 20 (e.g., the contract identifier 28 and the contractual parameters 30). The single cryptographic address 102 and/or the digital contract 20 (e.g., the contract identifier 28 and the contractual parameters 30) may additionally or alternatively be separately sent from the entity server 140 to the data layer server 74 (perhaps via the communications network 142 illustrated by FIGS. 14-15). Regardless, the entity's private cryptocoinage 60 may be associated with the digital contract 20 (e.g., the contract identifier 28 and the contractual parameters 30) and/or the single cryptographic address 102. The transaction records 100 and/or their privately hashed blocks of data may thus specify, include, reference, and/or be associated with, and/or identified by, the single cryptographic address 102, the digital contract 20, the contract identifier 28, and/or the contractual parameters 30. Because the contract identifier 28 (and/or its corresponding hash value) is an identifiable input to the data layer server 74 generating the blockchain data layer 72, the data records 70 may also carry or reference the contract identifier 28 and/or the contractual parameters 30. So, should the blockchain data layer 72 create or issue its own cryptocoinage 120, the cryptocoinage 120 may also reference, be identified by, or be associated with the single cryptographic address 102 and/or the contract identifier 28 and/or the contractual parameters 30. The single cryptographic address 102, the contract identifier 28, and/or the contractual parameters 30 may thus common indicators or reference data for tracking both the entity's private cryptocoinage 60 and the cryptocoinage 120 issued by the blockchain data layer 72, according to the terms of the digital contract 20. The transaction records 100 (representing entity's private cryptocoinage 60) may thus be commonly mapped or identified to the cryptocoinage 120 issued by the blockchain data layer 72 and to the digital contract 20.

FIG. 23 illustrates a simple illustration. Once the contract identifier 28 (and/or its corresponding hash value) is received, the contract identifier 28 may propagate and be recorded within the blockchain data layer 72. The contract identifier 28, for example, may be recorded in any of the entries 180. The entry 180, and thus the contract identifier 28, may then be recorded and/or arranged as the entry block 182 and placed within the directory block 184. The entry 180, the entry block 182, and the directory block 184 may thus reference, specify, or be associated with, the contract identifier 28. The contract identifier 28 has thus propagated as informational content from the private blockchain 24 and into and through the blockchain data layer 72. The contract identifier 28 thus hierarchically moves through the multiple layers of cryptographic hashing for public publication. The blockchain data layer 72 thus tracks the transaction records 100 involving the contract identifier 28. In simple words, the blockchain data layer 72 may track contractual performance of the digital contract 20 via the transaction records 100 that reference or contain the contract identifier 28. Moreover, the blockchain data layer 72 may also track ownership and transfer of the entity's private cryptocoinage 60 and the cryptocoinage 120 issued by the blockchain data layer 72, all via the common single cryptographic address 102 and/or the contract identifier 28.

FIG. 24 illustrates more details. While the single cryptographic address 102 and/or the contract identifier 28 may be any alphanumeric entry or biometric input, FIG. 24 illustrates a common authentication mechanism 190. Here the same or similar authentication mechanism 190 is used to access both the entity's private cryptocoinage 60 and the cryptocoinage 120 issued by the blockchain data layer 72. If a user of the blockchain data layer 72 satisfies the authentication mechanism 190, then exemplary embodiments may access both the private cryptocoinage 60, the cryptocoinage 120, and/or the data records 70 associated with the contract identifier 28. As a simple example, suppose the user of the authentication mechanism 190 supplies information or data representing the single cryptographic address 102 and/or the contract identifier 28. The single cryptographic address 102 and/or the contract identifier 28 may be any unique alphanumeric entry, biometric input, user identifier, or other authentication credential. For example, most readers are likely familiar with an alphanumeric username and password, which is a common authentication mechanism 190. FIG. 24, though, illustrates a passphrase 192 (such as a multi-word mnemonic). When the entity's private cryptocoinage 60 is/are created, generated, or assigned, the entity's private cryptocoinage 60 may be assigned or associated with the passphrase 192. The passphrase 192 is unique to the registered owner, possessor, or user of the entity's private cryptocoinage 60. The passphrase 192 may even be hashed as a hash value and supplied to the blockchain data layer 72 (as above explained). The passphrase 192, in other words, may be hashed as the single cryptographic address 102 and propagated within the blockchain environment 22 to document the transaction records 100 involving the entity's private cryptocoinage 60.

The passphrase 192 may also authenticate to the cryptocoinage 120. If the user correctly supplies the passphrase 192, then the same user may conduct transactions involving the cryptocoinage 120 issued by the blockchain data layer 72 and/or involving the contract identifier 28 associated with the digital contract 20. Exemplary embodiments thus allow the user to order transactions and exchanges involving the entity's private cryptocoinage 60, the cryptocoinage 120 issued by the blockchain data layer 72, and/or the digital contract 20.

FIGS. 25-27 further illustrate the access mechanism, according to exemplary embodiments. The filling station 110 may be a public and/or private service for financial transactions involving the entity's private cryptocoinage 60, the cryptocoinage 120 issued by the blockchain data layer 72, and/or the digital contract 20. FIG. 25 illustrates the filling station 110 as a software-as-a-service offered by the secure data layer server 74 for accessing the blockchain data layer 72. The filling station 110, for example, may be a module within, or called by, the data layer application 154. A user accesses the filling station 110 to conduct transactions involving her private cryptocoinage 60, the cryptocoinage 120 (issued by the blockchain data layer 72), and/or the digital contract 20. While the filling station 110 may have any user interface, FIG. 25 illustrates a web interface 194. That is, the filling station 110 may be accessed via a webpage 196. The webpage 196 prompts the user to input her authentication credentials according to the authentication mechanism 190 (such as typing the passphrase 192 into a data field or audibly speaking the passphrase 192).

FIG. 26 further illustrates the web interface 194. The user accesses the filling station 110 using a user device 200. While the user device 200 may be any processor-controlled device, most readers are familiar with a smartphone 202. If the smartphone 202 correctly sends authentication credentials (such as the single cryptographic address 102 and/or passphrase 192, as above explained), then the smartphone 202 may utilize the web interface 194 to the data layer server 74 and/or the blockchain data layer 72. The smartphone 202 executes a web browser and/or a mobile application to send a request 204 specifying an address or domain name associated with or representing the filling station 110. The web interface 194 to the data layer server 74 thus sends the webpage 196 as a response, and the user's smartphone 202 downloads the webpage 196. The smartphone 202 has a processor and memory device (not shown for simplicity) that causes a display of the webpage 196 as a graphical user interface (or “GUI”) 206 on its display device 208. The GUI 206 may generate one or more prompts or fields for specifying the authentication mechanism 190 and transactional options. For example, the user preferably enters, speaks, or otherwise provides the passphrase 192. Exemplary embodiments may or may not hash the authentication passphrase (using the hashing algorithm 148 above explained) to produce or generate a hashed passphrase. Exemplary embodiments may then search the blockchain data layer 72 for the data records 70. That is, exemplary embodiments may query the blockchain data layer 72 for a query parameter (such as the contract identifier 28 and/or its hashed value) and the blockchain data layer 72 identifies the data records 70 that match or reference the query parameter. The filling station 110 may then process the data records 70 to provide a transactional summary 210 of the digital contract 20. The filling station 110 may also allow the user to replenish an amount or value of the private cryptocoinage 60 and/or the cryptocoinage 120, even allowing the user to continue exchanging the cryptocoinage 60 for access to the blockchain data layer 72.

Exemplary embodiments may thus share the common authentication mechanism 190. If the entity's private software application 40 requires the same passphrase 192 to establish any terms of the digital contract 20, then the passphrase 192 may have been hashed and recorded within the blockchain data layer 72. The single cryptographic address 102, the contract identifier 28, and/or the passphrase 192 may be associated with the data records 70 representing the digital contract 20, the private cryptocoinage 60 (issued by the entity 32), and the cryptocoinage 120 (issued by the blockchain data layer 72). The filling station 110 may thus identify any of the data records 70 that are commonly associated with the contract identifier 28, the private cryptocoinage 60 (issued by the entity 32), and/or the cryptocoinage 120. The filling station 110 thus allows the user to exchange cryptocoinage 60 and 90 for access to the private blockchain 24 and/or the blockchain data layer 72.

FIG. 27 illustrates a query mechanism. Here the data layer server 74 may access a database 220 of data layer records. The database 220 of data layer records provides a referential record of the informational content contained within the blockchain data layer 72. FIG. 27 illustrates the data layer server 74 locally storing the database 220 of data layer records in its local memory device 156, but the database 220 of data layer records may be remotely stored and accessed via the communications network 142. Regardless, the data layer server 74 may query the database 220 of data layer records for the single cryptographic address 102 and/or the contract identifier 28 and identify and/or retrieve any corresponding data records 70. While the database 220 of data layer records may have any logical structure, FIG. 27 illustrates the database 220 of data layer records as a table 222 that maps, converts, or translates the single cryptographic address 102 and/or the contract identifier 28 to its corresponding entry 180, entry block 182, and/or directory block 184 within the blockchain data layer 72. Whenever the data layer server 74 generates the entry 180, entry block 182, and/or directory block 184, the data layer server 74 may add an entry to the database 220 of data layer records. Over time, then, the database 220 of data layer tracks a comprehensive historical repository of information that is electronically associated with its corresponding contract identifier 28. The data layer server 74 may then read or retrieve the entry 180, entry block 182, and/or directory block 184 containing or corresponding to the contract identifier 28.

Exemplary embodiments thus present the entity-specific cryptocoinage 60. Any entity 32 may create its own private blockchain 24, establish its entity-specific tokens 62, and define or offer digital contracts 20. The entity-specific tokens 62 may or may not have the value 94. The tradeable token 66, for example, may have a market value based on supply and/or demand, thus allowing or causing the value 94 of the tradeable token 66 to rise/fall or to increase/decrease, based on market forces. The credit token 64, however, may have a constant price or value, perhaps set by the entity 32. The entity-specific tokens 62 may be associated with the contract identifier 28, thus allowing a faster and simpler accounting scheme for machine executable contractual terms.

Exemplary embodiments may thus create coinage on top of coinage. The hierarchical scheme (explained with reference to FIG. 21) allows the private entity 32 to establish its private cryptocoinage 60 hierarchically above the traditional BITCOIN®, ETHEREUM®, or RIPPLE® coinage. The entity's private data 36 remains private, but the transaction records 100 may be publicly documented or proved via the traditional BITCOIN®, ETHEREUM®, or RIPPLE® environment. The private entity 32, in other words, need to worry about or concern itself with public publication. The private entity 32 need only subscribe (e.g., pay for write access) to the blockchain data layer 72. The digital contract 20 may also be offered, executed, and documented by the transaction records 100.

FIG. 28 illustrates a public entity 230, according to exemplary embodiments. Here exemplary embodiments may be applied to public data 232 generated by the public entity 230. The public entity 230 may be a city, state, or federal governmental agency, but the public entity 230 may also be a contractor, non-governmental organization, or other actor that acts on behalf of the governmental agency. The public entity 230 operates a public server 234 and applies its software application 236 to its public data 232 to generate its governmental blockchain 238. The public entity 230 may further generate/issue its cryptocoinage 240 and offer digital contracts 20 for governmental, public services. The data layer server 74 receives the governmental blockchain 238 and generates the blockchain data layer 72. The data layer server 74 may then generate the public blockchain 76 representing any data records 70 representing the public data 232 and/or the cryptocoinage 240.

FIGS. 29-32 further illustrate contractual execution, according to exemplary embodiments. When the contract server 42 (such as the data layer server 74) receives the blockchain 24, exemplary embodiments inspect the blockchain 24 to identify the contract identifier 28 and/or the contractual parameters 30. The contract identifier 28 and/or the contractual parameters 30 may be contained within the block 26 of data within the blockchain 24. The contract identifier 28 and/or the contractual parameters 30 may be additionally or alternatively be metadata contained within the block 26 of data, and/or the contract identifier 28 and/or the contractual parameters 30 may be a data, data field, and/or a file attachment. The contract identifier 28 and/or the contractual parameters 30 may be information or data specified by the blockchain 24 and/or by a packet header or body. Regardless, once the contract identifier 28 and/or the contractual parameters 30 are determined, exemplary embodiments may consult the electronic database 44 of contracts.

FIG. 30 illustrates the database 44 of contracts. While the database 44 of contracts may have any logical structure, a relational database is perhaps easiest to understand. FIG. 30 thus illustrates the database 44 of contracts as an electronic table 250 that maps, converts, or translates the contract identifier 28 and/or the contractual parameters 30 to their corresponding network resource(s) 50. The database 44 of contracts may thus be preconfigured or preloaded with entries that assign or associate different contract identifiers 28 and/or contractual parameters 30 to their corresponding network resource 50 that provides, processes, and/or executes the corresponding digital contract 20. As the data layer server 74 receives any blockchain 24, the data layer server 74 may inspect the blockchain 24 for the contract identifier 28 and/or the contractual parameters 30. The data layer server 74 may then query the database 44 of contracts for the contract identifier 28 and/or the contractual parameters 30 to identify the computer file 46, server 254, virtual machine 256, Internet protocol address 258, or other network resource 50 that is responsible for executing the digital contract 20. The database 44 of contracts may optionally contain entries that relate hashed values of the contract identifier 28 and/or the contractual parameters 30. Regardless, once the network resource 50 is identified, the data layer server 74 may direct, assign, or outsource the contractual information 30 to the network resource 50 for processing.

FIG. 31 illustrates a simple example. Here the contract identifier 28 maps to a filename 260 that is associated with, or that represents, the computer file 46 that contains the programming language representing the digital contract 20. So, once the filename 260 is determined, the data layer server 74 may locally retrieve and execute the computer file 46 that corresponds to, or is associated with, the filename 260. The data layer server 74 may then execute the computer file 46, perhaps based on parameters defined or described by the contractual parameters 30 (such as party names, parameters associated with their respective performance obligations and terms, and consideration). Optionally, the data layer server 74 may retrieve the computer file 46 (perhaps via the communications network 146 illustrated by FIGS. 14-15) from a remote server, database, or other device. Regardless, as the computer file 46 is executed, the data layer server 74 may generate the data records 70 in the blockchain data layer 72 describing the execution of the computer file 46. For example, the data records 70 may sequentially and/or serially track the execution of the computer file 46, perhaps logging or documenting periodic or random updates as the computer file 46 executes, perhaps along with timestamps toward completion. The data records 70 may also log or document a final step or outcome of the programming language representing the digital contract 20. Again, then, the blockchain 24 only referenced the digital contract 20 (using the contract identifier 28 and/or the contractual parameters 30). The actual execution of the digital contract 20 may be offloaded or outsourced to the data layer server 74.

FIG. 32 illustrates another example. Here the data layer server 74 may only manage the execution of the digital contract 20 referenced by the contract identifier 28 and/or the contractual parameters 30. That is, the data layer server 74 may outsource the execution of the digital contract 20 to a vendor or supplier as a subcontractor process. Again, when the data layer server 74 receives the blockchain 24, the data layer server 74 inspects the blockchain 24 to identify the contract identifier 28 and/or the contractual parameters 30. The data layer server 74 may then consult the database 44 of contracts. Here, though, the database 44 of contracts has entries that map or relate the contract identifier 28 to a remote server 262 that executes the digital contract 20 as a cloud-based service (perhaps as a software-as-a-service or SAAS). The database 44 of contracts may thus associate the contract identifier 28 to the Internet protocol address 258 representing the remote server 262 that executes the digital contract 20. The database 44 of contracts may additionally or alternatively associate the contract identifier 28 to a uniform resource locator (or “URL”) 264 representing the remote server 262 that executes the digital contract 20. Regardless, once the remote server 262 is determined, the data layer server 74 may retrieve and send a service request 266 to the remote server 262 (via the Internet protocol address 258 and/or the URL 264 representing the remote server 262. The service request 266 specifies the contract identifier 28 and requests an execution of the corresponding digital contract 20. The service request 266 may also specify the contractual parameters 30. When the remote server 262 (perhaps operated on behalf of a third party) receives the service request 266, the remote server 262 applies the parameters defined or described by the contractual parameters 30 to the programming code (such as the computer file 46) representing the digital contract 20. Once the digital contract 20 is executed, the remote server 262 may then send a service response 268 back to the data layer server 74, and the service response 268 comprises data or information describing an outcome of the digital contract 20 (such as consideration, payment, or performance terms).

The data layer server 74 may generate the data records 70 in the blockchain data layer 72. For example, the data records 70 may document the date and time that the service request 266 was sent to the remote server 262. Moreover, as the remote server 262 provides the digital contract 20 as a service, the remote server 262 may send periodic or random service updates 270 as the service is provided along with timestamps toward completion. The data layer server 74 may thus generate the data records 70 describing the service updates 270 received from the remote server 262. The data layer server 74 may also generate the data records 70 describing the service response 268 sent from the remote server 262 describing an outcome of the digital contract 20.

Exemplary embodiments thus only need to identify the digital contract 20. The contract identifier 28 and the contractual parameters 30 need only be informational content in the private blockchain 24. The contract identifier 28 is any digital identifying information that uniquely identifies or references the digital contract 20. The contract identifier 28 may be an alphanumeric combination that uniquely identifies a vendor and/or version of the digital contract 20 and/or a processor or executioner of the digital contract 20. The contract identifier 28 may be expressed as a unique hash value that is included within, or specified by, the private blockchain 24. Similarly, the contractual parameters 30 may identify the parties to the digital contract 20, their respective performance obligations and terms, and consideration.

FIG. 33 is a flowchart illustrating a method or algorithm for processing of the digital contract 20, according to exemplary embodiments. The private blockchain 24 is received (Block 300) and inspected for the contract identifier 28, the contractual parameters 30, and/or their hash values (Block 302). The database 44 of contracts is consulted to identify the computer file 46 and/or the network resource 50 (Block 304). The computer file 46 is retrieved and executed (Block 306) and/or the service request 266 is sent to the network resource 50 (Block 308). The result of the digital contract 20 is received or determined (Block 310). The data records 70 in the blockchain data layer 72 are generated (Block 312), and the data records 70 describe the execution of the digital contract 20. The data records 70 may be hashed (Block 314) and incorporated into the public blockchain 24 (Block 316). When a user successfully authenticates to the filling station 110 (Block 318), the filling station 110 may access the data records 70 in the blockchain data layer 72 (Block 320) representing the digital contract 20.

FIG. 34 is a schematic illustrating still more exemplary embodiments. FIG. 34 is a more detailed diagram illustrating a processor-controlled device 350. As earlier paragraphs explained, the entity's private software application 40 and/or the data layer application 154 may partially or entirely operate in any mobile or stationary processor-controlled device. FIG. 34, then, illustrates the entity's private software application 40 and/or the data layer application 154 stored in a memory subsystem of the processor-controlled device 350. One or more processors communicate with the memory subsystem and execute either, some, or all applications. Because the processor-controlled device 350 is well known to those of ordinary skill in the art, no further explanation is needed.

FIG. 35 depicts other possible operating environments for additional aspects of the exemplary embodiments. FIG. 35 illustrates the entity's private software application 40 and/or the data layer application 154 operating within various other processor-controlled devices 350. FIG. 35, for example, illustrates that the entity's private software application 40 and/or the data layer application 154 may entirely or partially operate within a set-top box (“STB”) (352), a personal/digital video recorder (PVR/DVR) 354, a Global Positioning System (GPS) device 356, an interactive television 358, a tablet computer 360, or any computer system, communications device, or processor-controlled device utilizing any of the processors above described and/or a digital signal processor (DP/DSP) 362. Moreover, the processor-controlled device 350 may also include wearable devices (such as watches), radios, vehicle electronics, clocks, printers, gateways, mobile/implantable medical devices, and other apparatuses and systems. Because the architecture and operating principles of the various devices 350 are well known, the hardware and software componentry of the various devices 350 are not further shown and described.

Exemplary embodiments may be applied to any signaling standard. Most readers are thought familiar with the Global System for Mobile (GSM) communications signaling standard. Those of ordinary skill in the art, however, also recognize that exemplary embodiments are equally applicable to any communications device utilizing the Time Division Multiple Access signaling standard, the Code Division Multiple Access signaling standard, the “dual-mode” GSM-ANSI Interoperability Team (GAIT) signaling standard, or any variant of the GSM/CDMA/TDMA signaling standard. Exemplary embodiments may also be applied to other standards, such as the I.E.E.E. 802 family of standards, the Industrial, Scientific, and Medical band of the electromagnetic spectrum, BLUETOOTH and any other.

Exemplary embodiments may be physically embodied on or in a computer-readable storage medium. This computer-readable medium, for example, may include CD-ROM, DVD, tape, cassette, floppy disk, optical disk, memory card, memory drive, and large-capacity disks. This computer-readable medium, or media, could be distributed to end-subscribers, licensees, and assignees. A computer program product comprises processor-executable instructions for execution of digital contracts, as the above paragraphs explain.

While the exemplary embodiments have been described with respect to various features, aspects, and embodiments, those skilled and unskilled in the art will recognize the exemplary embodiments are not so limited. Other variations, modifications, and alternative embodiments may be made without departing from the spirit and scope of the exemplary embodiments. 

1. A method, comprising: receiving, by a server, a private blockchain associated with a private entity, the private blockchain specifying a contract identifier that uniquely identifies a digital contract; querying, by the server, an electronic database for the contract identifier specified by the private blockchain, the electronic database electronically associating digital contracts to contract identifiers including the contract identifier specified by the private blockchain; identifying, by the server, a digital contract of the digital contracts that is electronically associated with the contract identifier specified by the private blockchain; and executing, by the server, the digital contract that is electronically associated with the contract identifier specified by the private blockchain.
 2. The method of claim 1, further comprising generating a data record in a blockchain data layer that documents the executing of the digital contract that is electronically associated with the contract identifier specified by the private blockchain.
 3. The method of claim 2, further comprising generating a cryptographic proof based on a hashing of the data record in the blockchain data layer.
 4. The method of claim 3, further comprising publicly publishing the cryptographic proof via a public blockchain.
 5. The method of claim 2, further comprising transacting a cryptocoinage in response to the generating of the data record in the blockchain data layer.
 6. The method of claim 1, further comprising transacting a cryptocoinage in response to the executing of the digital contract.
 7. The method of claim 1, further comprising identifying a contractual parameter specified by the private blockchain.
 8. A system, comprising: a hardware processor; and a memory device, the memory device storing instructions, the instructions when executed causing the hardware processor to perform operations, the operations comprising: receiving a private blockchain associated with a private entity, the private blockchain specifying a contract identifier that uniquely identifies a digital contract; querying an electronic database for the contract identifier specified by the private blockchain, the electronic database electronically associating digital contracts to contract identifiers including the contract identifier specified by the private blockchain; identifying a digital contract of the digital contracts that is electronically associated with the contract identifier specified by the private blockchain; and executing the digital contract that is electronically associated with the contract identifier specified by the private blockchain.
 9. The system of claim 8, wherein the operations further comprise generating a data record in a blockchain data layer that documents the executing of the digital contract that is electronically associated with the contract identifier specified by the private blockchain.
 10. The system of claim 9, wherein the operations further comprise generating a cryptographic proof based on a hashing of the data record in the blockchain data layer.
 11. The system of claim 10, wherein the operations further comprise publicly publishing the cryptographic proof via a public blockchain.
 12. The system of claim 9, wherein the operations further comprise transacting a cryptocoinage in response to the generating of the data record in the blockchain data layer.
 13. The system of claim 8, wherein the operations further comprise transacting a cryptocoinage in response to the executing of the digital contract.
 14. The system of claim 8, wherein the operations further comprise identifying a contractual parameter specified by the private blockchain.
 15. A memory device storing instructions that when executed cause a hardware processor to perform operations, the operations comprising: receiving a private blockchain associated with a private entity, the private blockchain specifying a contract identifier that uniquely identifies a digital contract; querying an electronic database for the contract identifier specified by the private blockchain, the electronic database electronically associating network resources executing digital contracts to contract identifiers including the contract identifier specified by the private blockchain; identifying a network resource of the network resources that is electronically associated with the contract identifier specified by the private blockchain; sending a service request to the network resource that is electronically associated with the contract identifier specified by the private blockchain, the service request requesting an execution of a digital contract of the digital contracts, and the service request specifying the contract identifier specified by the private blockchain.
 16. The memory device of claim 15, wherein the operations further comprise generating a data record in a blockchain data layer that documents the sending of the service request.
 17. The memory device of claim 16, wherein the operations further comprise generating a cryptographic proof based on a hashing of the data record in the blockchain data layer.
 18. The memory device of claim 17, wherein the operations further comprise publicly publishing the cryptographic proof via a public blockchain.
 19. The memory device of claim 16, wherein the operations further comprise transacting a cryptocoinage in response to the generating of the data record in the blockchain data layer.
 20. The memory device of claim 15, wherein the operations further comprise transacting a cryptocoinage in response to the sending of the service request. 